1 /* 2 * OpenRISC Linux 3 * 4 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 12 #ifndef __ASM_OPENRISC_FFS_H 13 #define __ASM_OPENRISC_FFS_H 14 15 #ifdef CONFIG_OPENRISC_HAVE_INST_FF1 16 17 static inline int ffs(int x) 18 { 19 int ret; 20 21 __asm__ ("l.ff1 %0,%1" 22 : "=r" (ret) 23 : "r" (x)); 24 25 return ret; 26 } 27 28 #else 29 #include <asm-generic/bitops/ffs.h> 30 #endif 31 32 #endif /* __ASM_OPENRISC_FFS_H */ 33